GCD of 656, 552, 220, 145 Calculator

Given Input numbers are 656, 552, 220, 145

To find the GCD of numbers using factoring list out all the divisors of each number

Divisors of 656

List of positive integer divisors of 656 that divides 656 without a remainder.

1, 2, 4, 8, 16, 41, 82, 164, 328, 656

Divisors of 552

List of positive integer divisors of 552 that divides 552 without a remainder.

1, 2, 3, 4, 6, 8, 12, 23, 24, 46, 69, 92, 138, 184, 276, 552

Divisors of 220

List of positive integer divisors of 220 that divides 220 without a remainder.

1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220

Divisors of 145

List of positive integer divisors of 145 that divides 145 without a remainder.

1, 5, 29, 145

Greatest Common Divisior

We found the divisors of 656, 552, 220, 145 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 656, 552, 220, 145 is 1.

Therefore, GCD of numbers 656, 552, 220, 145 is 1

Given Input Data is 656, 552, 220, 145

Make a list of Prime Factors of all the given numbers initially

Prime Factorization of 656 is 2 x 2 x 2 x 2 x 41

Prime Factorization of 552 is 2 x 2 x 2 x 3 x 23

Prime Factorization of 220 is 2 x 2 x 5 x 11

Prime Factorization of 145 is 5 x 29

The above numbers do not have any common prime factor. So GCD is 1

Step1:

Let's calculate the GCD of first two numbers

The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)

LCM(656, 552) = 45264

GCD(656, 552) = ( 656 x 552 ) / 45264

GCD(656, 552) = 362112 / 45264

GCD(656, 552) = 8

Step2:

Here we consider the GCD from the above i.e. 8 as first number and the next as 220

The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)

LCM(8, 220) = 440

GCD(8, 220) = ( 8 x 220 ) / 440

GCD(8, 220) = 1760 / 440

GCD(8, 220) = 4

Step3:

Here we consider the GCD from the above i.e. 4 as first number and the next as 145

The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)

LCM(4, 145) = 580

GCD(4, 145) = ( 4 x 145 ) / 580

GCD(4, 145) = 580 / 580

GCD(4, 145) = 1

GCD of 656, 552, 220, 145 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 836, 235, 416, 951
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• GCD of 330, 811, 763, 489

1. What is the GCD of 656, 552, 220, 145?

GCD of 656, 552, 220, 145 is 1

2. Where do I get the detailed procedure to find GCD of 656, 552, 220, 145?

You can find a detailed procedure to find GCD of 656, 552, 220, 145 on our page.

3. How to find GCD of 656, 552, 220, 145 on a calculator?

You can find the GCD of 656, 552, 220, 145 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.